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2 years ago

Zoey ran a total of 1000m. 20 seconds into her run she had traveled 100 meters. What was her speed at 100 meters?

1 answer:

7 0

Let's assume that Zoey ran at a constant speed. we can use the equation,
d = st
where, d = distance, s = speed, and t = time taken.

By rearranging,
s = d/t
Zoey had travelled 100 m in 20 seconds.
Hence, s = 100 m / 20 s = 5 m/s

therefore Zoey's speed at 100 m is 5 m/s

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Answer:

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Explanation:

h(t) = -16t² + 64t + 80

The maximum height is at the vertex. We can find the vertex of a parabola using -b / (2a):

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t = 2

The vertex is at 2 seconds. The height of the stone at this time is:

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h(2) = 144

The maximum height is 144 feet.

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1 year ago

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Mila [183]

Answer:

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